Post-Tension vs. Conventional Slab Foundations: What Dallas Homeowners Should Know

How Conventional Slabs Work

Conventional slabs use a grid of steel rebar embedded in the concrete to resist cracking and add tensile strength. They’re a proven, cost-effective option for garages, additions, and smaller structures.

How Post-Tension Slabs Work

Post-tension slabs use steel cables run through the concrete and tensioned after the pour cures, actively compressing the slab. That compression helps the foundation resist the cracking forces caused by North Texas clay soil movement.

Which One Fits Your Project

• New home construction — post-tension is now standard across most of North Texas
• Garages and small additions — conventional slabs are often sufficient and more economical
• Larger structures on reactive soil — post-tension provides better long-term crack resistance